1213-K C/3
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1213-K C/3 Bearing Product Overview & Core Advantages
The 1213-K C/3 is a double row angular contact ball bearing designed for applications requiring high rigidity and precise operation. Featuring a tapered bore (1:12) for secure shaft mounting, this precision bearing excels at handling combined loads, supporting significant radial forces while managing axial loads in both directions. Its compact bearing dimensions (65mm bore, 120mm OD, 23mm width) and optimized internal geometry contribute to stable performance in demanding environments, making it an ideal choice for high-reliability machinery.
Model Code Breakdown
| Suffix | Technical Meaning |
|---|---|
| K | Indicates a tapered bore with a 1:12 ratio for precise interference fit on tapered shafts |
| C/3 | Specifies CN radial internal clearance group, optimized for normal operating conditions |
1213-K C/3 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row ball arrangement provides exceptional stiffness, minimizing deflection under combined loads and ensuring precise shaft positioning.
Superior Load Capacity: Engineered to handle substantial radial dynamic load ratings of 7898 lbf while effectively managing bidirectional axial forces common in industrial applications.
Optimized High-Speed Performance: The nylon cage construction reduces friction and enables smooth operation at limiting speeds up to 7,000 rpm, while the factory-applied lubrication ensures consistent performance across the entire temperature range.
Precision Engineering: Manufactured from chrome steel with tight dimensional tolerances (±0.015mm) and CN clearance for reliable operation in precision machinery and high-speed applications.
1213-K C/3 Bearing Typical Application Areas
- Machine Tool Spindles and precision machining equipment
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment requiring high rigidity support
- Pump and Compressor Systems operating under combined loading conditions
- Agricultural Machinery and heavy-duty industrial equipment
